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The Resnick Sustainability Institute (RSI) advances global sustainability through transformational science, engineering, and education. We prioritize research across campus that addresses challenges and opportunities associated with climate change and the stewardship of natural resources. The fundamental insights gained are directed towards implementation and scale-up for real-world impact.


RSI research is broadly focused on four interconnected initiatives, where Caltech researchers are poised to provide uniquely impactful science and technology solutions.


Sunlight to Everything

Supporting science and engineering to make materials and build systems that harness sunlight while reducing greenhouse gas emissions, waste, and facilitating carbon drawdown.


Climate Science

Supporting science and engineering to diagnose, adapt to, and mitigate against climate change.

Courtesy Jackie Moonves

Water Resources

Supporting science and engineering to improve our ability to predict, manage, and improve availability of fresh water.

Courtesy Daniel Dar

Ecology and Biosphere Engineering

Supporting science and engineering to understand and sustain the biosphere.

Pioneer Fellowship

RSI Fellowships

Supporting outstanding students and postdocs to pursue research and training in exciting areas of sustainability at Caltech.


Explore Entrepreneurship at RSI

Helping Caltech scientists discover new ways for innovation to have world impact.

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Watch Webinars

Pathways to Net-Zero and Negative Carbon Emissions & other webinar content now online!

Examples Algae-Based Biocomposites from C. Daraio's Lab

Newly Funded Research

Learn about recently funded research projects.

Data Plot Imagery courtesy Jacqueline Dowling

Explore Research Highlights

Browse research highlights from RSI Graduate Research and Postdoctoral Fellows.

RSI Fellows

Upcoming Events

Visit our Event Calendar to view upcoming sustainability events at Caltech.